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The Journal of Bone and Joint Surgery. British volume, 1959
1. The hip joint usually acts as the fulcrum of a lever system. 2. The centre of gravity of supported parts, which is usually medial to the hip joint, exerts a rotational effect upon the pelvis. If pelvic position is to be maintained this force must be counterbalanced by hip muscles. 3.
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1. The hip joint usually acts as the fulcrum of a lever system. 2. The centre of gravity of supported parts, which is usually medial to the hip joint, exerts a rotational effect upon the pelvis. If pelvic position is to be maintained this force must be counterbalanced by hip muscles. 3.
openaire +2 more sources